Keep Nature Wild x Arizona Highways. Help us help our AZ Parks! We've teamed up with Arizona Highways once again to bring you the Explore Arizona Parks Collection — Celebrating all 22 National Park Service sites in Arizona. 10% of the proceeds from the Explore Arizona Parks collection will be donated to benefit Arizona’s beautiful parks through the NPS. Plus, for every product purchased, we pick up a pound of trash. Which means less litter floating around AZ.. Note. We are so excited to be donating the proceeds from this collection to support National Parks! To do this, the Explore Arizona Parks Collection is excluded from all discounts and promotions.. Details. 5" x 7" postcard. Card is made from 100% recycled paper. This card is recyclable (+ frameable!). Back is blank for room to write!. Printed in the U.S.